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Aortic stenosis is a common valvular disorder leading to left ventricular outflow obstruction. The anterograde velocity across the valve must be at least 2 m/sec, whereas the aortic valve sclerosis is the thickening and calcification without a significant pressure gradient. Etiologies include congenital (bicuspid/unicuspid), calcific, and rheumatic disease. Symptoms such as exertional dyspnea or fatigue gradually develop after a long asymptomatic latent period of about 10 to 20 years. Patients go on to develop chest pain, heart failure,
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